package demo3;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet Filter implementation class MyFilter
 */
@WebFilter(urlPatterns = { "/*" })
public class MyFilter implements Filter {

	/**
	 * Default constructor.
	 */
	public MyFilter() {
		// TODO Auto-generated constructor stub
	}

	/**
	 * @see Filter#destroy()
	 */
	public void destroy() {
		// TODO Auto-generated method stub
	}

	/**
	 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
	 */
	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		// TODO Auto-generated method stub
		// place your code here

		// pass the request along the filter chain

		HttpServletRequest req = (HttpServletRequest) request;
		String path = ((HttpServletRequest) request).getRequestURI();

		if ((!path.endsWith(".html")) & (!path.endsWith("Login"))&(!path.endsWith(".jsp"))
				&& req.getSession().getAttribute("user") == null) {

			HttpServletResponse res = (HttpServletResponse) response;

			res.sendRedirect("index.html");
		} else {
			chain.doFilter(request, response);
		}
	}

	/**
	 * @see Filter#init(FilterConfig)
	 */
	public void init(FilterConfig fConfig) throws ServletException {
		// TODO Auto-generated method stub
	}

}
